cdfs

cdfs

[J . A . Magallon]

Hi, 

Recently I read the BeOS www page, and answerd a question in other mailing
list. Both things have remind me of a pretty file system: 'cdfs'.

Anybody knows if there is a port of 'cdfs' (Audio CD File System) for Linux ?
Which fs now in kernel would be good as a template to start ?
I am always looking for something enough easy to start kernel programming,
and this could be a nice start (look, throw away all your ripping soft
and just do a 'cp').

-- 
J.A. Magallon                                                      $> cd pub
mailto:jamagallon@able.es                                          $> more beer

Linux werewolf 2.4.2-ac19 #3 SMP Mon Mar 12 23:50:29 CET 2001 i686

Re: cdfs

[Christoph Hellwig]

In article <20010313162341.C1311@werewolf.able.es> you wrote:
> Hi, 
>
> Recently I read the BeOS www page, and answerd a question in other mailing
> list. Both things have remind me of a pretty file system: 'cdfs'.
>
> Anybody knows if there is a port of 'cdfs' (Audio CD File System) for Linux ?

There is a cdfs, but it does more then just adding audio CDs to the namespace...
Take a look at:

http://www.elis.rug.ac.be/~ronsse/cdfs/

	Christoph

-- 
Of course it doesn't work. We've performed a software upgrade.

Re: cdfs

[John Levon]

On Tue, 13 Mar 2001, J . A . Magallon wrote:

> Hi, 
> 
> Recently I read the BeOS www page, and answerd a question in other mailing
> list. Both things have remind me of a pretty file system: 'cdfs'.
> 
> Anybody knows if there is a port of 'cdfs' (Audio CD File System) for Linux ?
> Which fs now in kernel would be good as a template to start ?
> I am always looking for something enough easy to start kernel programming,
> and this could be a nice start (look, throw away all your ripping soft
> and just do a 'cp').
> 
> 

http://www.kernelnewbies.org/ has this link :

http://www.elis.rug.ac.be/~ronsse/cdfs/

john

-- 
"Alan Turing thought about criteria to settle the question of whether
 machines can think, a question of which we now know that it is about
 as relevant as the question of whether submarines can swim."
	- Dijkstra

Re: cdfs

[Ville Herva]

On Tue, Mar 13, 2001 at 04:23:41PM +0100, you [J . A . Magallon] claimed:
> Hi, 
> 
> Recently I read the BeOS www page, and answerd a question in other mailing
> list. Both things have remind me of a pretty file system: 'cdfs'.
> 
> Anybody knows if there is a port of 'cdfs' (Audio CD File System) for Linux ?
> Which fs now in kernel would be good as a template to start ?
> I am always looking for something enough easy to start kernel programming,
> and this could be a nice start (look, throw away all your ripping soft
> and just do a 'cp').

Below is one response to a similar question from the l-k archive:

From: David Balazic <david.balazic@uni-mb.si>
Date: Thu, 13 Jan 2000 12:08:39 -0800 
Subject: Re: CD-ROM Driver Design

There are already two file-systems for CD-audio on Linux :
- cdfs at
http://www.elis.rug.ac.be/~ronsse/cdfs/
- audiofs at
http://fly.cc.fer.hr/~ptolomei/audiofs/

Are you sure there is a need for a third one ? The audiofs uses the
CDROMREADAUDIO for reading the data and uses the page-cache for caching. I
personally added the page-cache code , but I don't believe it makes a lot
of sense, because when ripping audio, you read data sequentially , so the
cache just eats all free RAM ( possibly throwing out other more usefull
cached data ) and gives almost no gain. By the way , when there is a
"normal" FS on a "normal" block device, does the data get cached twice,
once in buffer-cache and once in page-cache ?
David Balazic


-- v --

v@iki.fi

Re: cdfs

[J . A . Magallon]

On 03.13 Ville Herva wrote:
> 
> Below is one response to a similar question from the l-k archive:
> 
> From: David Balazic <david.balazic@uni-mb.si>
> Date: Thu, 13 Jan 2000 12:08:39 -0800 
> Subject: Re: CD-ROM Driver Design
> 
> There are already two file-systems for CD-audio on Linux :
> - cdfs at
> http://www.elis.rug.ac.be/~ronsse/cdfs/
> - audiofs at
> http://fly.cc.fer.hr/~ptolomei/audiofs/
> 
> Are you sure there is a need for a third one ? The audiofs uses the

Oh, NO. All my searchs give no result, thanks to all the people who
answered.

I will try those links.

-- 
J.A. Magallon                                                      $> cd pub
mailto:jamagallon@able.es                                          $> more beer

Linux werewolf 2.4.2-ac19 #3 SMP Mon Mar 12 23:50:29 CET 2001 i686

Re: cdfs

[Ville Herva]

On Tue, Mar 13, 2001 at 08:45:07PM +0100, you [J . A . Magallon] claimed:
> 
> On 03.13 Ville Herva wrote:
> > 
> > Below is one response to a similar question from the l-k archive:
> > 
> > From: David Balazic <david.balazic@uni-mb.si>
> > Date: Thu, 13 Jan 2000 12:08:39 -0800 
> > Subject: Re: CD-ROM Driver Design
> > 
> > There are already two file-systems for CD-audio on Linux :
> > - cdfs at
> > http://www.elis.rug.ac.be/~ronsse/cdfs/
> > - audiofs at
> > http://fly.cc.fer.hr/~ptolomei/audiofs/
> > 
> > Are you sure there is a need for a third one ? The audiofs uses the
> 
> Oh, NO. All my searchs give no result, thanks to all the people who
> answered.

Just to clarify: also the "Are you sure there..." part was from the David
Balazic's mail. I should have quoted more clearly.


-- v --

v@iki.fi

CDFS

[Richard B. Johnson]

Just got a CD/ROM that 'works' on W$, but not Linux.
W$ `properties` call it 'CDFS'. Is there any such Linux
support?

Cheers,
Dick Johnson
Penguin : Linux version 2.4.24 on an i686 machine (797.90 BogoMips).
            Note 96.31% of all statistics are fiction.

Re: CDFS

[Randy.Dunlap]

On Fri, 19 Mar 2004 11:01:44 -0500 (EST) Richard B. Johnson wrote:

| 
| Just got a CD/ROM that 'works' on W$, but not Linux.
| W$ `properties` call it 'CDFS'. Is there any such Linux
| support?

You did try to search for it, right?

http://www.elis.rug.ac.be/~ronsse/cdfs/

<plug>
Some other Linux fs-es:
  http://www.xenotime.net/linux/linux-fs.html
</plug>

--
~Randy
"You can't do anything without having to do something else first."
-- Belefant's Law

Re: CDFS

[Richard B. Johnson]

On Fri, 19 Mar 2004, Randy.Dunlap wrote:

> On Fri, 19 Mar 2004 11:01:44 -0500 (EST) Richard B. Johnson wrote:
>
> |
> | Just got a CD/ROM that 'works' on W$, but not Linux.
> | W$ `properties` call it 'CDFS'. Is there any such Linux
> | support?
>
> You did try to search for it, right?
>

Sure did and what I get was an explaination that, for
Linux, the letters "CDFS" refer to something that "exports
all the tracks and boot images of a CD as normal files".

That's not what I want. I want to mount a CDFS file-system.

Given that, maybe the explaination is bogus, but I
need some CDFS file-system support so I can mount
a Microsoft CDFS CD/ROM. If such support exists, I
would think that I should be able to do:

mount -t cdfs /dev/cdrom /mnt


Cheers,
Dick Johnson
Penguin : Linux version 2.4.24 on an i686 machine (797.90 BogoMips).
            Note 96.31% of all statistics are fiction.

Re: CDFS

[Norberto Bensa]

Richard B. Johnson wrote:
> Just got a CD/ROM that 'works' on W$, but not Linux.
> W$ `properties` call it 'CDFS'. Is there any such Linux
> support?

What's on the CD?

Re: CDFS

[Tigran Aivazian]

On Fri, 19 Mar 2004, Richard B. Johnson wrote:

> On Fri, 19 Mar 2004, Randy.Dunlap wrote:
> 
> > On Fri, 19 Mar 2004 11:01:44 -0500 (EST) Richard B. Johnson wrote:
> >
> > |
> > | Just got a CD/ROM that 'works' on W$, but not Linux.
> > | W$ `properties` call it 'CDFS'. Is there any such Linux
> > | support?
> >
> > You did try to search for it, right?
> >
> 
> Sure did and what I get was an explaination that, for
> Linux, the letters "CDFS" refer to something that "exports
> all the tracks and boot images of a CD as normal files".
> 
> That's not what I want. I want to mount a CDFS file-system.
> 
> Given that, maybe the explaination is bogus, but I
> need some CDFS file-system support so I can mount
> a Microsoft CDFS CD/ROM. If such support exists, I
> would think that I should be able to do:
> 
> mount -t cdfs /dev/cdrom /mnt

Unless something has changed seriously in just a few years, the name CDFS
was always just a Microsoft synonym for the proper name iso9660. The Linux
name CDFS is the filesystem which Randy pointed you at, for mounting
multi-session CDs and accessing individual sessions as files (iso images).

So, if you have what Microsoft calls CDFS then it is simply iso9660 and if 
it doesn't mount then either your CD is damaged (and you only get a false 
"impression" of it working in Windows) or there is a bug in Linux iso9660 
implementation. What are the error messages you get when you try to mount 
it as an iso9660?

(You didn't forget to compile Joliet and RR extensions into your kernel, 
did you?)

Kind regards
Tigran

Re: CDFS

[Arnd Bergmann]

On Fri, 19 Mar 2004, Randy.Dunlap wrote:

> <plug>
> Some other Linux fs-es:
>   http://www.xenotime.net/linux/linux-fs.html

<plug mode="another">
Nice list, maybe you can also add xip2fs (http://linuxvm.org/Patches/).
</plug>

> </plug>

	Arnd <><

Re: CDFS

[Richard B. Johnson]

On Fri, 19 Mar 2004, Norberto Bensa wrote:

> Richard B. Johnson wrote:
> > Just got a CD/ROM that 'works' on W$, but not Linux.
> > W$ `properties` call it 'CDFS'. Is there any such Linux
> > support?
>
> What's on the CD?
>

Some source-code written on a M$ machine and then burned into
the CD. I can do  `od /dev/cdrom` and read it. I just can't
mount it. One responder said it may have a UDF file-system
on it. I am building a module as I write. Thanks.

Cheers,
Dick Johnson
Penguin : Linux version 2.4.24 on an i686 machine (797.90 BogoMips).
            Note 96.31% of all statistics are fiction.

Re: CDFS

[Richard B. Johnson]

On Fri, 19 Mar 2004, Tigran Aivazian wrote:

> On Fri, 19 Mar 2004, Richard B. Johnson wrote:
>
> > On Fri, 19 Mar 2004, Randy.Dunlap wrote:
> >
> > > On Fri, 19 Mar 2004 11:01:44 -0500 (EST) Richard B. Johnson wrote:
> > >
> > > |
> > > | Just got a CD/ROM that 'works' on W$, but not Linux.
> > > | W$ `properties` call it 'CDFS'. Is there any such Linux
> > > | support?
> > >
> > > You did try to search for it, right?
> > >
> >
> > Sure did and what I get was an explaination that, for
> > Linux, the letters "CDFS" refer to something that "exports
> > all the tracks and boot images of a CD as normal files".
> >
> > That's not what I want. I want to mount a CDFS file-system.
> >
> > Given that, maybe the explaination is bogus, but I
> > need some CDFS file-system support so I can mount
> > a Microsoft CDFS CD/ROM. If such support exists, I
> > would think that I should be able to do:
> >
> > mount -t cdfs /dev/cdrom /mnt
>
> Unless something has changed seriously in just a few years, the name CDFS
> was always just a Microsoft synonym for the proper name iso9660. The Linux
> name CDFS is the filesystem which Randy pointed you at, for mounting
> multi-session CDs and accessing individual sessions as files (iso images).
>

Mounting it as an iso9660 fs doesn't work.

> So, if you have what Microsoft calls CDFS then it is simply iso9660 and if
> it doesn't mount then either your CD is damaged (and you only get a false
> "impression" of it working in Windows) or there is a bug in Linux iso9660
> implementation. What are the error messages you get when you try to mount
> it as an iso9660?


Script started on Fri Mar 19 12:01:38 2004
# umount /mnt
# umount /mnt
umount: /mnt: not mounted
# umount -t iso9660 /dev/cdrom /mnt\b
mount: wrong fs type, bad option, bad superblock on /dev/cdrom,
       or too many mounted file systems
# exit
Script done on Fri Mar 19 12:04:49 2004

>
> (You didn't forget to compile Joliet and RR extensions into your kernel,
> did you?)

Nope.

>
> Kind regards
> Tigran
>

Cheers,
Dick Johnson
Penguin : Linux version 2.4.24 on an i686 machine (797.90 BogoMips).
            Note 96.31% of all statistics are fiction.

Re: CDFS

[Felipe Alfaro Solana]

On Fri, 2004-03-19 at 17:01, Richard B. Johnson wrote:
> Just got a CD/ROM that 'works' on W$, but not Linux.
> W$ `properties` call it 'CDFS'. Is there any such Linux
> support?

AFAICT, in Windows CDFS == ISO-9660, nothing more, nothing less.
However, CDFS.SYS from Windows does have support for propietary Romeo
and Jouliet extensions, which maybe are the culprit of the problem.

Re: CDFS

[Richard B. Johnson]

On Fri, 19 Mar 2004, Felipe Alfaro Solana wrote:

> On Fri, 2004-03-19 at 17:01, Richard B. Johnson wrote:
> > Just got a CD/ROM that 'works' on W$, but not Linux.
> > W$ `properties` call it 'CDFS'. Is there any such Linux
> > support?
>
> AFAICT, in Windows CDFS == ISO-9660, nothing more, nothing less.
> However, CDFS.SYS from Windows does have support for propietary Romeo
> and Jouliet extensions, which maybe are the culprit of the problem.
>

Well I just compiled in a module for UDF file-system since somebody
said it could be UDF on the CD instead of ISO-9660. In the process
of re-booting (nothing else), the CD decided to be mountable.

This doesn't make any sense because once the M$ CD wouldn't mount
I tried other ISO-9660 CDS and they mounted fine. I do backups
using ISO-9660 with the Joliet extensions as well. Anyway, I
could read the M$ CD using `od` as well.

So, all I did was re-boot (just like Windows) and it mounted fine.
Maybe there's somebody working on Linux that used to work for
M$, so it got infected with the Windows syndrome?

Cheers,
Dick Johnson
Penguin : Linux version 2.4.24 on an i686 machine (797.90 BogoMips).
            Note 96.31% of all statistics are fiction.

Re: CDFS

[Stefan Smietanowski]

Hi.

> Script started on Fri Mar 19 12:01:38 2004
> # umount /mnt
> # umount /mnt
> umount: /mnt: not mounted
> # umount -t iso9660 /dev/cdrom /mnt\b
^^^^^^^^

use "mount" instead of "umount" to mount something.

> mount: wrong fs type, bad option, bad superblock on /dev/cdrom,
>        or too many mounted file systems
> # exit
> Script done on Fri Mar 19 12:04:49 2004

// Stefan

Re: CDFS

[Richard B. Johnson]

On Fri, 19 Mar 2004, Stefan Smietanowski wrote:

> Hi.
>
> > Script started on Fri Mar 19 12:01:38 2004
> > # umount /mnt
> > # umount /mnt
> > umount: /mnt: not mounted
> > # umount -t iso9660 /dev/cdrom /mnt\b
> ^^^^^^^^
>
> use "mount" instead of "umount" to mount something.
>

I did. Note that `mount` replies below. I don't know why there
is a 'u' in the echo...

    vvv------
> > mount: wrong fs type, bad option, bad superblock on /dev/cdrom,
> >        or too many mounted file systems
> > # exit
> > Script done on Fri Mar 19 12:04:49 2004
>
> // Stefan
>

Cheers,
Dick Johnson
Penguin : Linux version 2.4.24 on an i686 machine (797.90 BogoMips).
            Note 96.31% of all statistics are fiction.

Re: CDFS

[Måns Rullgård]

"Richard B. Johnson" <root@chaos.analogic.com> writes:

> On Fri, 19 Mar 2004, Stefan Smietanowski wrote:
>
>> Hi.
>>
>> > Script started on Fri Mar 19 12:01:38 2004
>> > # umount /mnt
>> > # umount /mnt
>> > umount: /mnt: not mounted
>> > # umount -t iso9660 /dev/cdrom /mnt\b
>> ^^^^^^^^
>>
>> use "mount" instead of "umount" to mount something.
>>
>
> I did. Note that `mount` replies below. I don't know why there
> is a 'u' in the echo...

Maybe it's related to the backspace at the end of the line.

-- 
Måns Rullgård
mru@kth.se

Re: CDFS

[Randy.Dunlap]

| Date: Fri, 19 Mar 2004 17:45:37 +0100
| From: Arnd Bergmann
| 
| 
| On Fri, 19 Mar 2004, Randy.Dunlap wrote:
| 
| > <plug>
| > Some other Linux fs-es:
| >   http://www.xenotime.net/linux/linux-fs.html
| 
| <plug mode="another">
| Nice list, maybe you can also add xip2fs (http://linuxvm.org/Patches/).
| </plug>
| 
| > </plug>

OK, updated.

Thanks,

--
~Randy